Question

A small linear segment of an electric circuit is lying on $x$ -axis extending from $x=-\frac{a}{2}$ to $x=\frac{a}{2}$ and a current is flowing in it. The magnetic induction due to the segment at a point $x=a$ on $x$ -axis will be

• A. $\propto a$
• B. zero
• C. $\propto a^2$
• D. $\propto \frac{1}{a}$

Answer 1

The correct option is B zero

since, point lies along the wire

Hence,

option $B$ is correct answer.